Metal-working machine



VW C Y E mY WBB? 5W mum IN1/EN ToR ran W RUM/7s G. W. ROLLINS. METAL WORKING MACHINE.

HQED JUNE 21.1919.

Mar. 20, 1923. 1,448,868.

G.W.R0LL1NS.

METAL WORKING MACHINE.

FILED JUNE 2l 1919- 2 SHEETS-SHEET 2.

Fate-titel hier. .29, i923,

htfflttii GRANT, ROLLXNS,V OF TOLEDO, OHIO, ASSKGNOR TO THE VLLYS-OVERLAND' f COlVLPANY; :OF TOLEDO, Cil-TIG, A GGEPORIION OF OHIO.l

METAL-'WRKING EACHINE.

Application filed. .Tune 21, 1919. Serial No. 305,841.

which l declare the following to he a full,

clear, and exact description.

lThis invention relates to a nietal working machine, niore particularly a inaehine which is adapted tohe employed ior the puipose oi torcing" a pin within an opening'or openings formed in one or incre elements constructed in such a manner as to proiiuce a tight vlit between the parv )ne object ot this invention to'provide a device ol this character which is o'i" imple construction and etiicient in opeiatloi'i.`

A further object oi'I the invention is to provide a device olf this character which is automatic in its operation and lwhich inay he employed for the purpose o''f readily and quickly forcing a pin within an opening torn'ied in a metal eli-xinent. i

A. `further object of the invention is to proride means t'or properly centering the` opening '.orined 1n the inetal elernent with.

the pin which is adapted to he driven therein in `such a inanner as to prevent `distortion ofv the parts .andtacilitate the'ease with which the operation is perLtorined.

A. turther object of tlieinvention is to provide suitahleineans 'for iirinly securingl in properl position relative to each other.

a pair olf elements which are provided with registering openings, while a pin. is heine' driven vi/ithin the. registering openings or the elements.

Further objects .of this invention relate to economies of manufacture and details of construction, as ,will hereinafter appear t'ronithe detailedl description to follow.

The objects ot' the invention are accoinplishedin one instance `hy thedevices and means described inthe following specilication, hut it is evident that the saine may he varied widely without departing trein the scope oif the invention 'as pointed out inthe appended claims,

A structure constituting one eniliodiinent ot' the invention, which inay he the preferred, is illustrated in the ai'fcoinpanying drawings forming a part hereoil in which:

Figure l is a side elevational Vview et the machine, the plunger being shown in raised position.

Figure Il isa side elevationalview of a portion oi the operating mechanism of the machine, the plunger being shown in depressed posit-ion. 60

Figure lll is a` horizontal sectional view,` taken along the line lll-#lll of Figure l, and illustrating the relative position of the block or casing, andthe nieansfor actuating the plunger.

Figure lV is a horizontal sectional view, taken along the line IV-IV loi" Figure l, and illustratingin detail the valve-operating mechanism for actuating` the plunger.

Figure V is a vertical sectional View taken along the line V-V of Figure llland illustrating` the position of the operating mechanism and the elements adapted to he oper-f ated upon when the plunger in depressedy position.

Referring to the drawings, similar reterenee characters designate corresponding parts throughout the several views, and the sectional views are taken looking in` the direction or thesinall arrows at the ends of the section lines. 4

ln the einhodiinent of the invention illustrated herewith, l indicates a supporting standard which is preferably provided with an enlarged base portion 3 adapted when 85 desired to be secured tot-he floor by a means of a plurality ofholts el. The upper portion ot the standard is provided with an enlarged head 2, upon which is positioned a table 5 ot any suitable shape or size, and which is adapted to he secured to the enlarged head j hy means ot a plurality oil bolts orrother suitable fastening nieansI 6. The main operating Amechanisms are adapted to' heisupported in proper relation relative to each other upon the tahle to which they are lirnily secured in such 4a mannerl as to re-i` tain them in proper position at all times.

liliountedupon the front edge yof the table 5 is a block or casing 7 provided with" an 10o outwardly extending hase portion 8 which is iirrnly vsecured to thetahle by yrneans of `a plurality of bolts 9. The block or casing 7 may he constructed in any `desired torni which may loe `found to; be `applicable for los the particular use for which -it is to he ein-` ployed. In the present instance thehloclc or casing is provided'withf'a lateral openm angular opening- 11 is a perforation 12 which extends through the upper portion of the casing` or block and communicates with the lateral opening 10 previously described. ri perforation 13 is provided in the lower portion of the casing which is located in such a manner as to be in alignment with the perforation 12 formed in the upper side thereof and this perforation 1 3 extends through the base portion of the casing and the table as shown in Figure V and is adapted to receive the upper end portion 14 ofa spring pressed rod 15. The spring pressed rod 15 is provided with an enl- 'ged portion 16 which is adapted to iit wit an opening` 17 formed upon the under surface of the table in such a manner as to limit the upward movement of the rod l5. .Pivotally connected to the lower end portion of the rod 15 is a connecting link 1S-wliich `is in turn pivotally connected as at 19 to a foot lever 20. The foot lever 2O is pivoted at one end to the standard 1 as at 21 and is normally maintained in raised position by means of aresilient connection 22, one end of which is adapted to be secured to the table at 23. l

An upright standard preferably formed of a pair of channel members 2G is secured to the upper surface of the table by means of a plurality of securing bolts 27, and extends upwardly therefrom forming` the n i support for the plunger and its operating mechanism. lhrmly bolted to the front portion of the upright standard 25 near the v upper end thereof is a block 28 which has 'secured thereto plurality of guide members 29 of suitable form and shape for he reception of the plunger 30. The guide members 29 are so constructed as to permit the plunger 30 to glide freely therein, while they areA located in such ya position as to maintain the plunger at all timesin alignment with Athe angular opening 11 formed upon the upper face of the block' or casing 7. The plunger 30 is provided with a reduced end 31 formed upon the lower ei;- tremity thereof, which fits within the perforation 12 formed in the upper portion of the block or casing 7.

Pivotally mounted as at upon the upper `portion of the standard 25 is a support to the upper end portion of which there is in turn pivotally mounted as at lever arm 35. rllhe lever arm 35 is pivotally connected to the upper end portionof the plunger as at 36 and the opposite end of the lever is pivotally connected as at 23T toa piston rod 38. @ne end of the piston rod 38 has operatively secured thereto, a piston (not shown), which is slidably mounted within the cylinder 39. Firinly secured to the upper surface of the table in any suitable manner and extending rearwardly therefrom are a pair of bracket members 40, and the lower end portion of the` cylinder 39 is pivotally connected to the brackets 40 as at 41 in such a manner as to enable the cylinder 39 to pivot thereon with suiiicient freedom of movement to enable the same to tilt slightly under certain conditions oi operation of the mechanism. It will he noted that the support 33 is pivotally mounted at 32, and upon reference to Figures I and ll of the drawings, it will be seen that both the cylinder and the support 33 are mounted so as to permit a slight tilting thereof in order to provide an arrangement of the parts which will permit the plunger 3() to move freely between the guides 29 at all times. A resilient connection 42 connects the rear portion of the lever 35 with the base of the standard in such a manner as to enable the lever to be returned after it has been actuated by the piston rod 38.

The particular mechanism employed for operating the piston rod 38 and the lever connected therewith will now be described. While in the present embodiment of the invention, compressed air is employed for the purpose of actuating the plunger 80. it is to be understood that any desired motiv force may be used therefor, such as an electric motor, or power may be taken from a shaft in a manner well understood in the art relating to power transmission. Secured to one side of one of the U-shaped channel members 26 in any suitable manner as by means of a bracket. 44, is a pipe connection 45 provided at opposite ends thereof with valves 4G and 47. the valve 46 being adapted to control communication between the connection 45 and a compressed air supply pipe 4S, while the valve 47 controls communication between the connection 45 and an eX haust pipe 49. A supply pipe connects the pipe connection 45 with the base of the cylinder 39, being adapted to communicate with the. cylinder beneath` the lower most position of the piston head (not shown). The valves 46 and 47 are each adapted to be moved into closed position by means of a compressionspring 52 while the valves are adapted to be opened by means under the control of the operator. The means employed for opening the valves comprises a lever arm 54 pivot-ed substantially centrally of its length to the bracket 44 as at 55 and provided at one end-thereof with an offset handle 56. The opposite ends of the pivoted l'dil lofi- Ilo lever 54- are adapted Ito constantly contact with the heads `oi? the valves 46 and 47, the valves ybeing constantly held in contact therewith :by means ot the coil lsprings 52. A coil spring 57 secured totlieend ot' the offset handle 56 and `to Aa rportion of one of the U-shaped channel members `26 serves to constantly retain the pivoted. lever 54 in such a j position as to maintain theffva'lve Li'open and the valve 46 closed, except when the pivoted lever is moved Yfrom this position by the operator for the purpose of actuating the mechanism.'v

ln the embodiment of the invention-illustrated herewith, a stop'rod 58 is employed, which is secured in proper position by being adjustably attached to one ol the U-shaped channel members 26 by means oit nuts 59 at one end, while the opposite end of the stop rod projects within the lateral l opening.

'lornied in the block or casing 'T and serves as a stop lor t-lie elements adapted to be opera-ted upon .in sucha manner as to insure the proper positioning of such elements with respect to the pertorationsin the `block or easing. l

`While this invention in its broader aspect relates to a mechanism adapted to be einployed for theA purpose ot driving a pin within an openingl formed in an element, or for driving a pin withinaregistering opention with whatevcrelement voi' elements itl may be desirable in' practice to employ the mechanism. ln the present. instance, the lateral opening- 10 formed in the block or casing is ot' such `sir/ie and shape as to readi ily receivev an engine `piston A,1tlie stop S' extending to such a point as Itocontact with the head ot' the piston when' thev opening formed therein is in registry with' the pertorations l2 and 13 formed in the block or casing. A piston connectingrodl provided with an opening in one end thereof,

has the end portion containing the openingsuitably positioned within the piston in such a manner that -the openingtformedl therein will suitably register with the open- 'ings in the piston andthe pertorations 1Q and 18' formed in kthe block, `or casing.

lVhen iositionino these elements"withinthe lloclc oi' casing prejiaratory 'to the operations ot torciiig`tlic pins witliintlie iefI- isteriiig openingsiormed therein, the pedal 20 is depressed, thus witlidrawingthe upper lend portion letioi the rod l5-iirom the latera-l opening l0 in the block or casing, and when the piston A and connecting rod l?) armproperly placed in position in the'mani nerdescribed above, the pedal 2O is released -wherebyjthe rod r15 under the in- `iiiience `ot the flexible connection 22. is drawn upwardly in such a manner that :the upper end portion le? thereofrv projects within theyA openings :formed in the piston head andk connecting armand serves toA retain these parts in position sor that the openings therein will be in proper alignment and be yretained in such` position while thc pin is being driven within the registering openings. ln this connection it is tobe understood that the upper end portion le: oi' the rod-l5 is slightly smaller in diameter than the pin C, so as to enable it to readily enter the openings in the piston head and connecting rod without *being forced therein, while the portion'lll ot the rod l5 is sniiiciently large `to retain the piston head and: connecting rods in position with the openings therein in alignment. The several parts being inthe position described above, the ypin Cis iiiserted inithe `perforation l2 termed in the `upper face of the casing or block in the' position illustrated in Figure I, whereupon the operator grasps theotfset handle 56 of the pivoted lever 5stand swingsjthe lsame upon its pivot in such a manner as to torce the valve Li6 inwardly, thus placing the pipe 50 in communication with thevcompressed air pipe i8 and at the saine time closing the valve L.iT-which communicates with the exhaust opening 49.

ot the pistonf l(not shown), l whereby the piston rod S8 is forced upwardly and the plunger 3() is reciprocated in a manner so thattlie reduced end portion 3l thereof, strikes tlieupper 'end ot the pin (l and Forces the saine within the registering open` ings in the piston head and connectingl arm,

while at rthe same time the' upper end 11i oi? the rod is forced downwardlyby the .lower end otthe pin C so that the parts occupy the position illustratedin Figure V.

lf'lilhen the plungerl has-.completed its ,down-` 1 ward movement the voperative parts o't the' mechanism occupy the position illustrated in Figurerll, whereuponrthe operator re-` leases'fthe `oifsethandle 56 of the lever 54 thus upermittingthe spring 57 to return thev lever to its normal positiony and open the valve ibetweeiithe outlet feiflaiid thc cylinderim'llhle spring 52`which actuates ther valve 4G immediately closes the communication -between the :connection and the supply pipe 48,' andthe compressed air. in the :cylinder is permitted rto passreeljv to the atmospherethrough the exhaust pipe e9.' The lflexible vconnection 42 immediately Compressed air is thus' admitted to the cylinder 39 beneath the head l `returns` the lever and plunger 30 to their normal position, as illustrated in Figure I, when the compressed air in the cylinder 39 has escaped.

It will be clear from the above descrip tion, that the mechanism as described herewith provides a ready and etlicient means for readily and easily performing the operation of driving' a pin Within the register'- ing openings in a piston head and the connecting rod associated therewith, While at the same time insuring that the parts be retained in such a -position as to prevent distortion or injury thereto. Bymeans of the .mechanism described, this operation is capable being performed by ordinary unskilled labor and with considerably greater rapidity than is possible if it is neccssary to employ the means in common use.

lVhile I have shown and described in considerable detail, a specific embodiment of my invention, it is to be understood that this showing and description is illustrative only and for the purpose of rendering my invention more clear and that I do not re- `gard'tlie invention as limited to the details of construction illustrated or described, nor any of them, except in so far as I have included such limitations Within the terms of the following claims, in which itis my intention to claim all novelty inherent in my invention broadly as Well as specifically.

llVha-t I claim as new and desire to secure by Letters, Patent is:

l. In a device of the class described, a casing provided with an opening therein, in which opening a Work element is adapted to fit, said element having an opening through which a pin is to be driven, and means for forcing' the pin into the opening in the element While the same is positioned Within the casing. y

2. In a device of the class described in combination, au integral casing provided witlitop and side openings therein, the opening in the side. of the casing being" adapted to receive and position a Work element having an opening therethrough, the opening in the top of said casing being adapted to hold a pin to be driven through the opening in the ivorlreleinent, and means for forcing the pin into the Work element.

3. `In a device of the class described, in combination, a block provided With a perforation, means for retaining a Work element having an opening in such a position that the opening in the element will be in registry with the perforationiin the block, and means forforcing a pin within the opening in the element.

4t. vIn a device of the class described in combination. a block, means for maintaining an opening in a Work element in a fixed position relative to the block` means for positioning` a pin in alignment With the opening in the Work element, and means for forcing the pin within lthe opening in the element.

In a device of the class described, in combination, means for maintaining a pair of perforated work elements in such a position that the perforations of the elements will be in alignment and means for forcingl another Work element in the shape of a pin, into the registering perforations in the pair of Work elements.

tion of which is adapted to extend Within the aerforation in the block, a plunger provided With a reduced portion in substantial alignment with the spring` pressed rod, and means for forcing the reduced portion of the plunger within the perforation in the block. f

8.' Inv a device of the class' described, a perforated block, a spring pressed rod a portion of which is adapted to extend Within the perforation in the block, a plunger located upon the opposite side of the perforatedblock from the spring pressed rod, andineans for actuating said plunger.

9. In a device of the class described, a perforated block, a spring pressed rod a portion of which is adapted to extend ivithin the perforation in the block, a plunger located upon the yopposite side of the perforated block from the spring pressed rod,-

actuating means for forcing the plunger toward the block, and means for Withdrawinn-the plunger When the actuating means is suspended from operation.

l0. In a device of the class described` a perforated block, a plunger positioned in substantial alignment with the perforation in the block, actuating means for forcingr the plunger towards the blo-cl; comprising a pivot-ally mounted cylinder, and means for returningthe plunger to its normal position upon release ofthe actuating means.

11. In a device of the class described. a perforated block provided with a passage adapted to hold a perforated element to be operated on by the devicen means for aligning the perforations in the block and the Work element and means for limiting` tbe movement ofthe Work element in the passage in the block and cooperating with the first mentioned means to bring the perforations into registry,

lf2, In a device of the class described, a perforated block. a spring-pressed rod, a portion lof which is adapted to extend Within the perforation in the block, means on the rod to limit the movement of the'rod, a plunger located upon the opposite side of the perforated block from the springpressed rod7 and means for forcing the plunger towards the block.

13. In a device of the class described, a perforated block provided with a passage for the reception of a perforated Work` element to be operated on7 a springvpressed rod, a portion of which is `adapted to extend Within the perforations of the block and Worlr element, a plunger located upon the opposite side of the perforated block from the spring-pressed rod, and means for forcing the plunger towards the block.

la. In a device of the class described, a perforated block provided With a passage for the 'reception of a perforated work element through which perforation in the element a pin is to be driven, a spring-pressed rod, a portion of which is adapted to extend Within the perforations of the block and the work element to align the same, a plunger located upon the opposite side of the perfo'rated block from. the spring-pressed rod and adapted When operated to drive the pin through the perforation in the Work element, and pivotally mounted actuating means for operating the plunger.

15. In a device of the class described, a perforated block, a passage in the block at right angles to the perforation, the said passage being adapted to hold a perforated Work element, a stop for positioning the Work element, a spring-pressed rod for aligning the perforations in the Work ele ment and the block, a.`plunger adapted to drive a pin through the aligned perforations, and pivotally mounted means for operating said plunger.

1G. In a device of the class described, a block provided with a cylindrical passage adapted to hold an element to be operated on, the said element being in the shape of a cylindrical piston, means to limittlie longitudinal movement of the piston in the passage, and means for circumferential-ily positioning the piston in the passage.

17. In a device of the class described, a perforated block, a spring-pressed rod adapted to be reciprocated in the perforation, a plunger adapted to be forced Within the perforation upon the opposite side of the perforated block from the springpressed rod, and means on the plunger to limit the movement of the plunger in the perforation.

18. In a device of the class described, a`

perforated block, having a socket for holding a pai'r of perforated elements to be operated on by the device, and a common` means for aligning the perforations in the elements and also for positioning theone of the elements in the block so that the perforation in said elements Will register with the perforation in the block. A

In testimony whereof,l I aiiix my signature.

GRANT W. ROLLINS. 

